Plow.



N. A. NELSON.

PLOW.

APPLICATION mm SEPT. 28. 1914.

Patented Nov. 23, 19 15.

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INvENTbR ZZQ 5/5290,

\VITNESSES:

N. A. NELSON.

PLOW. APPLICATION FILED SEPT. Q9. l@i i-.

L1 61 2M. Patented Nov. 23, 1915.

%% I INVENTOR [a I L 659475-290,

.N. A. NELSON.

PLOW

I 'APPLICAZTWN FILED SEPT. 28. 1l4. LRHLQWL Patented Nov. 23, 1915.

5 SHEETS-SHEET 3.

WITNESSES IN VENTOR Amoluwmsr &

N. A. NELSON.

FLOW. I arbucmoumzn SEPT. 22. 1914.

' Llfilfifil Patented Nov. 23, 1915.

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WITNESSES: J IN VEN 'I'OR Am mum N. A. NELSON.

. PLOW.

APPLICATION FILED SEPT. 28. I914.

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WW W" NELS A. NELSON, OF GRAFTON, CALIFORNIA.

BLOW.

Specification of Letters Patent.

Patented Nov. as, role.

Application filed September 28, 1914. Serial No. 863,880.

T 0 all whom it may concern Be it known that I, Nuns A. Nelson, a citizen of the United States, residing at Grafton, in the county of Yolo and State of California. have invented new and useful Improvements in Plows, of which the following is a specification.

This invention relates to a traction engine gang plow.

It is one of the objects of the present 111- vention .to provide a plow of the. digg er type, which is so constructed that 1t will more thoroughly turn. the soil and break it up 'as it passes through the ground and which is adapted to be attached to and operated by a tractor of any suitable construc tion.

Another object of the invention is to provide means for raising and lowering the plow with relation to the ground and the tractor, said raising means being capable of holding the plow clear of the ground when moving from one field to another, and also to regulate or adjust the depth of the fur.-

row.

Further objects will hereinafter appear.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, havingrcference to'the accompany ing drawings, in which- Figm a. 1 is a side elevation, showing the tractive, driving and suspending connections formed between the tractor and plow. Fig. 2 is a side elevation in section on line 2 Fig. 3. Fig. 3 is a plan view of the plow, showing a double unit. Fig. t is an end view of the gear transmission. Fig. 5 is a plan view of one of the radius and draft bars. Fig. 6 is an elevation of one of the Winch units. Fig. 7 is a perspective view of one of the shovel'like blades. Fig. 8 is a perspective view of one of the scrapers, with connected bifurcated arms.

More particularly described, A. indicates the standard type of traction engine which may be driven. and operated in any suitable manner, 2 indicates the traction wheels, and 3 a pair of driving gears secured to same. Secured to the rear end of the frame 4 of the tractor is a hanger 5, and mounted in said hanger isa pair of stationary bearing shafts 6 and 7. lnlcrmcshing with eacl1 driving gear is an intermediate gear i. Each gear is secured upon a sleeve 9, on the'inner end of which is slidably mounted, on a feather on the sleeve, a secondary intermediate gear 10. These gears are adapted to be thrown into and out of mesh with a pair of gears 11, loosely mounted upon the bearing shaft 7 by means of a lever 12 pivotally mounted, as at 1 3, on the rear end of frame 4. Formed integrally with, or otherwisesecured to, each gear 11 is a sprocket wheel 14 from Which power is transmitted through a chain 15 to operate the plow hereinafter to be described.

The plow comprises a main frame B in which is mounted a crank-shaft 16. Connected with said crank, by journals 17, is a pair of plow beams 18, the inner ends of which terminate in yokes 19 which are slidably mounted on rollers 20 carried by a transversely disposed shaft 21 secured on the plow frame B.

"Secured on the lower side of each plow beam is a plurality of shovel-like blades 22. llngageable with the rear face of each shovel or blade 22 is a scraper 23 which is secured upon the lower end of a bifurcated arm 2+, journalcd at its upper end, as at 25, on a stationary cross-rod 2G. Surrounding each cross-rod-ZG and secured at one end'to the cross rod 26 and at the other end to arm A is a pair of coil springs 27, the tension of which springs is so directed that it will hold the arms, with connected scraper, in engagement with the rear face of each shovel. The scrapers being yieldingly held against the face of each shovel will follow the shovels in their movement about the crank shaft and are not thrown out of en- 'gagement with same until the shovels have been lifted into their uppermost position indicated at 22, Fig. 2. The scrapers are here prevented from moving forward by means of stops or pins 2t". The downward and backward movement of each shovel will again bring the shovels in engagement with the scrapers and the scrapers will then swing back into the position shown at 24 against the tension of the springs 27, while the shovels are moving down and back through the ground. The scrapers will thus engage the shovel blades both on the up and down movement and will keep the shovels (can and free from depositsof adhering soil at all times.

Power is transmitted to revolve the crank shaft through the sprocket chain 15. This causes the (rank shaft to revolve and will consequently cause the plow beams to move crank-arni-wise about the yokes 19 and r0llr tion of the be forced into the ground and will at the same time be pulled backward in the direchalf feathered arrow. This movement throws the soil backward, turning it completely, and will at the same time cause it to be thoroughly broken up. The gear ratio or drive formed between the main driving gears 3 and the crank shaft 16 is such that the shovels or blades 22 will move backward faster than the tractor is moving ahead. The soil is thus continuously thrown up in a backward direction .from the travel of the machine.

Secured to the forward end of the plow frame is a plurality of colter wheels 28. These are provided for the purpose of cutting the ground ahead of the blades or shovels 22 and also to keep the plow from running sidewise with relation to the tractor. Secured to the rear end of the frame is a combined-roller and harrow 29. This roller is drum-shaped and provided with a plurality of projecting teeth which are adapted to further break the soil and level it. The roller 29 ismounted in bearings which are vertically adjustable in guideways '31 formed in the hanger-32. boxes of said drum project into the guideways and are connected by links 33 with a crank arm 34 secured upon shaft 21. The shaft is adapted to be turned for the purpose of raising and lowering the drum with relation to the ground surface by means of a lever 35 which may be locked in any suitable position by means of a segment 36 and a grip-operated latch 37.

The pl with the tractor by means of a' plurality of draw bars 38 which are secured at one end to the shaft 7 and at the opposite end to extensions formed on the crank shaft 16. The plow unit is adapted to be raised clear of the ground, when moving from one field to another, or may be partly lifted to adj ust the depth of the furrow. This is accomplished in the following manner: Suitably secured to the rear end of frame 4 is a crane arm 39, and mounted on said arm is a pair of winches 40 and 41. These winches may be operated in any suitable manner, but are here shown' as turned by means of a hand crank 42, and are adapted to be locked by means of a ratchet wheel 43 and pawl 44. Secured to winch 40 and passing over a sheave 45, on the upper end of the crane arm, is a cable 46, the lower end of which is secured to an eye 47, or any other suitable means, on the front end of the plow frame. Similarly secured to winch v41 and passing over a similar sheave is a cable 48 which is secured to a rear stanchion 49 on the plow frame. By turning the winch 40 the front end of the sired, or both Winches may be turned to 11ft cated in Fig. 1.

' tractor andplow.

intermediate gears, shown at lO, I

. same has The journal 0W unit as a whole is connected- .face of each blade,

plow frame may be lifted, if dethe entire plow clear of the ground, as indi- The radius rods or draw bars 38 hold the driving chain 15 in a taut position at all times and also prevent the plow from swinging inwardly toward the rear end of the tractor. The depth of the furrow may thus be easily regulated by raismg or lowering the plow frame, with relation to the ground surface, by means of the cables 46 and 48, or the entire unit may be elevated clear of the ground, as previously described, without interfering with the driving transmission formed between the The slidable secondary ig. 4, permit the transmission to be connected or disconnected at any ti e.

By referring to F 1g. 2 it will be seen that a double unit has been shown.' Each of said units is independently raised andlowered by means of a double arrangement of cables 46 and 48 "and winches 40 and 41. Each unit is separately driven from gears lland sprockets 14, as a double arrangement of been provided, as shown in Fig. 4. For instance, one plowing unit may be elevated and the transmission disconnected by sliding gear 10 out of mesh with gear 11, while the other unit may be lowered in position and power transmitted to operate same by sliding its gear 10 into driving position.

plow constructed as here shown is particularlytada'pted for working soil where it is necessary to maintain the soil in a pulverized condition. It is easily adjusted to out different depths of furrows and may be quickly raised or lowered when moving fro-m one place to another.

The materials and finish of the several parts of the plow are such as the experience and judgment of the manufacturer may dictate.

I wish it understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims, and I do not wish tolimit myself to the specified design and construction here shown.

Having thus described my invention, what I claim and desire to secure by Letters Patcut is r 1. In a plow, the combination of a frame, a crank-shaft j ournaled in said frame, a plurality of plow beams slidably mounted at one end and carried by the crank-shaft at 'the other end,

a plurality of shovel-like blades secured to each beam, means for transmitting rotary movement to the crankshaft, and scrapers engageable with the rear said scrapers being secured to spring-actuated arms which yieldingly hold the scrapers in engagement with the blades while they are moving.

- 2. -In a plow, the combination of a frame, a crank-shaft journaled in said frame, a plu rality of plow beams slidably mounted at the end ofits up movement to be disengaged one end and carr ed by the crank-shaft at the from the scraper and reengaged with the other end, a plurality of shovel-like blades scraper upon its down movement;

secured to each beam, means for transmit- 6. In a plow, a frame, a spring pressed ting rotary movement to the crank-shaft, verticalarm pivoted at its upper end to the scrapers engageable withthe rear face of frame and having a scraper on its lower end, each blade, said scrapers being secured to a stop projectin out from the frame to enspring-actuated arms to yieldingly hold the gage a side of t e arm to restrict movement scrapers in engagement with the blades of the latter in one direction, a sliding plow whilethey are noving, and means for raisbeam, a crank for reciprocating the beam, ing or lowering the frame with relation to and avertical blade on the beam which durthe ground surface to regulate the depth of ing its Withdrawing movement from the the furrow. ground is engaged by the scraper.

3. In a plow, the combination of a frame, 7. In a plow, a reclprocatory beam having a crank-shaft journaled in said frame, a plua vertical blade, a scraper arranged to the rality of plow beams terminating in yokes rear of the blade, means whereby the scraper at one end and carried by the crank-shaft at is caused to engage the blade upon with the other end, a bearing shaft, rollers jourdrawing movement of the latter from the naled on said shaft on which the yoke ends ground, and means to limit movement of the of the beams are adapted to move back and scraper toward the blade during the remainforth, a plurality of shovel-like blades se- 'ing movement of the latter. cured to each beam, a yieldingly supported 8. In. a plow, a reciprocatory beam having scraper engageable with the rear face of a vertical blade, a spring pressed scraper each blade, and means for transmitting to having a scraping edge presented to the tary movement to the crank-shaft. blade at right angles to thelatter, and means 4. In a plow, a frame, a crank shaft jourto restrict the extent of movement of the naled in said frame, a plurality of plow scraper so as to prevent the latter from enbeams slidably mounted at one end and congaging the blade during a part of the movenected to the crank shaft at their other end, ment of the blade. blades secured to the beams, cross rods sup- 9. In combination with a spading blade, ported by the frame, bifurcated arms pivota movable scraper on one side thereof, and ally connected to the cross rods and stradmeans to impart a spadmg movement to the dling the beams, scrapers connected to the blade, said scraper being positioned for enarms, means for holding the scrapers in gagement by the blade on its downward yielding engagement with the blades, and movement and moved thereby to a 'POSltlOIl means for simultaneously transmitting adjacent the ground. movement to the crank shaft and beams. In testimony whereof I have hereunto set 5. In a plow, a frame, a plow beam theremy hand in the presence of two subscribing on, a vertical blade on the lbezi m, a spring witnesses.

ressed ivoted scra er on t e rame to one side of lhe blade afi d engageable with the NELS NELSON blade, crank means to actuate the beam, and VVllJIlGSSGSZ means to limit the extent of movement of the IRVINE SINNETT, scraper whereby to enable the blade upon W. HEALEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

